A man was attacked with a glass by another man at a St Kilda bar.Source: Supplied

A REVELLER has suffered severe lacerations to his face and head in a violent glassing at a popular St Kilda bar.

The young man, who was out celebrating a friend’s birthday, required stitches after having the spirit glass rammed into the side of his face.

Police have released CCTV images of the alleged offender in a bid to identify him.

They are also calling on the young woman who is seen in the footage talking with the two men to come forward.

Police said footage capturing the alleged attack at the Big Mouth venue on Acland St showed the men and woman engaging in conversation on the dancefloor for a few minutes before it “rapidly escalated” about 2.25am on Sunday.

A fight erupted between the two men following the glassing but was quickly broken up by security, with the offender fleeing out the front door.

Detective Acting Senior Sergeant Tim Moreland, from the St Kilda Crime Investigation Unit, said the victim suffered “significant injuries” including deep lacerations requiring stitches to his head, cuts to the inside of his mouth, as well as bruising and swelling.

CCTV image of a man police wish to speak to over a glassing attack in St Kilda.Source: Supplied

He said it was an “appalling” act to use a glass as a weapon and appealed for witnesses to come forward, adding that it is not known if the woman and the two men knew each other.

Detectives are also unsure what sparked the assault with the victim having “limited recollection” of the words that were exchanged in the lead up.

“The victim had been drinking ... he’s unclear in the actual detail,” he said.

Asked why the offender was not stopped, Sen-Sgt Moreland said the priority for the security guards was looking after the injured man until an ambulance arrived.

He was last seen wearing a white singlet, an unbuttoned black shirt and dark coloured jeans as he walked north along Barkly St towards Carlisle St.

The offender is perceived to be of southern European appearance, about 165cm to 175cm tall and unshaven.

Anyone with information is urged to call Crime Stoppers on 1800 333 000.

A NOTE ABOUT RELEVANT ADVERTISING: We collect information about the content (including ads) you use across this site and use it to make both advertising and content more relevant to you on our network and other sites.